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你必须知道的HTTP错误,HTTP错误

发布时间:2016-12-21 22:13 类别:IOS开发

你必须知道的HTTP错误,HTTP错误


发送网络请求有时失败,分析一下响应行,在响应的响应行内,你会发现响应行由三部分组成,用空格来隔开,HTTP/1.1 404 NOT FOUND,第一个是响应的HTTP的版本,第二个和第三个是状态值。

发送完网络请求会得到一个Error和response对象,我们不能单单只判断Error,直接打印出error这个错误,我们应该分析respon的属性statusCode,然后根据状态码分析错误的原因

分析状态值来分析网络请求错误的原因

分为五类错误

         下面列出了具体的网络请求错误

          |"100"  ; Section 10.1.1: Continue
          | "101"  ; Section 10.1.2: Switching Protocols
          | "200"  ; Section 10.2.1: OK
          | "201"  ; Section 10.2.2: Created
          | "202"  ; Section 10.2.3: Accepted
          | "203"  ; Section 10.2.4: Non-Authoritative Information
          | "204"  ; Section 10.2.5: No Content
          | "205"  ; Section 10.2.6: Reset Content
          | "206"  ; Section 10.2.7: Partial Content
          | "300"  ; Section 10.3.1: Multiple Choices
          | "301"  ; Section 10.3.2: Moved Permanently
          | "302"  ; Section 10.3.3: Found
          | "303"  ; Section 10.3.4: See Other
          | "304"  ; Section 10.3.5: Not Modified
          | "305"  ; Section 10.3.6: Use Proxy
          | "307"  ; Section 10.3.8: Temporary Redirect
          | "400"  ; Section 10.4.1: Bad Request
          | "401"  ; Section 10.4.2: Unauthorized
          | "402"  ; Section 10.4.3: Payment Required
          | "403"  ; Section 10.4.4: Forbidden
          | "404"  ; Section 10.4.5: Not Found
          | "405"  ; Section 10.4.6: Method Not Allowed
          | "406"  ; Section 10.4.7: Not Acceptable
          | "407"  ; Section 10.4.8: Proxy Authentication Required
          | "408"  ; Section 10.4.9: Request Time-out
          | "409"  ; Section 10.4.10: Conflict
          | "410"  ; Section 10.4.11: Gone
          | "411"  ; Section 10.4.12: Length Required
          | "412"  ; Section 10.4.13: Precondition Failed
          | "413"  ; Section 10.4.14: Request Entity Too Large
          | "414"  ; Section 10.4.15: Request-URI Too Large
          | "415"  ; Section 10.4.16: Unsupported Media Type
          | "416"  ; Section 10.4.17: Requested range not satisfiable
          | "417"  ; Section 10.4.18: Expectation Failed
          | "500"  ; Section 10.5.1: Internal Server Error
          | "501"  ; Section 10.5.2: Not Implemented
          | "502"  ; Section 10.5.3: Bad Gateway
          | "503"  ; Section 10.5.4: Service Unavailable
          | "504"  ; Section 10.5.5: Gateway Time-out
          | "505"  ; Section 10.5.6: HTTP Version not supported

 

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